Unsure if Calculation is Correct

Bazza06

New Member
Joined
Dec 3, 2015
Messages
18
Office Version
  1. 365
Platform
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  2. MacOS
Hi,

I'd like to obtain confirmation from some brains far better than mine, that the result I see is correct, because I am surprised that the difference at the end of the target period is so small.

The purpose of this calculation is to determine the total amount after a period of 120 months.

The base figure is the starting point and assumes that after each month a 5% gain is made, less 25% of the profit made.
The second column, assumes a 10% gain is made after each month, less 25% of the profit made.

However, at the end of 120 months, the difference is only 1M.

How can this be when at 10% it is double the amount made per month?

Transactions Balances Report.xlsx
AB
1Assumes 5% Monthly Return Less 25% Commission on Profit GainedAssumes 10% Monthly Return Less 25% Commission on Profit Gained
2£5,000.00£5,000.00
3£5,187.50£5,375.00
4£5,576.56£5,778.13
5£5,994.80£6,211.48
6£6,444.42£6,677.35
7£6,927.75£7,178.15
8£7,447.33£7,716.51
9£8,005.88£8,295.25
10£8,606.32£8,917.39
11£9,251.79£9,586.19
12£9,945.68£10,305.16
13£10,691.60£11,078.04
14£11,493.47£11,908.90
15£12,355.48£12,802.07
16£13,282.14£13,762.22
17£14,278.30£14,794.39
18£15,349.18£15,903.97
19£16,500.36£17,096.76
20£17,737.89£18,379.02
21£19,068.23£19,757.45
22£20,498.35£21,239.26
23£22,035.73£22,832.20
24£23,688.41£24,544.61
25£25,465.04£26,385.46
26£27,374.92£28,364.37
27£29,428.03£30,491.70
28£31,635.14£32,778.58
29£34,007.77£35,236.97
30£36,558.35£37,879.74
31£39,300.23£40,720.72
32£42,247.75£43,774.78
33£45,416.33£47,057.88
34£48,822.55£50,587.23
35£52,484.25£54,381.27
36£56,420.56£58,459.86
37£60,652.11£62,844.35
38£65,201.02£67,557.68
39£70,091.09£72,624.50
40£75,347.92£78,071.34
41£80,999.02£83,926.69
42£87,073.94£90,221.19
43£93,604.49£96,987.78
44£100,624.83£104,261.87
45£108,171.69£112,081.51
46£116,284.56£120,487.62
47£125,005.91£129,524.19
48£134,381.35£139,238.51
49£144,459.95£149,681.40
50£155,294.45£160,907.50
51£166,941.53£172,975.56
52£179,462.15£185,948.73
53£192,921.81£199,894.88
54£207,390.94£214,887.00
55£222,945.26£231,003.53
56£239,666.16£248,328.79
57£257,641.12£266,953.45
58£276,964.20£286,974.96
59£297,736.52£308,498.08
60£320,066.76£331,635.44
61£344,071.77£356,508.09
62£369,877.15£383,246.20
63£397,617.93£411,989.67
64£427,439.28£442,888.89
65£459,497.23£476,105.56
66£493,959.52£511,813.48
67£531,006.48£550,199.49
68£570,831.97£591,464.45
69£613,644.36£635,824.28
70£659,667.69£683,511.10
71£709,142.77£734,774.44
72£762,328.48£789,882.52
73£819,503.11£849,123.71
74£880,965.85£912,807.98
75£947,038.28£981,268.58
76£1,018,066.16£1,054,863.73
77£1,094,421.12£1,133,978.51
78£1,176,502.70£1,219,026.90
79£1,264,740.40£1,310,453.91
80£1,359,595.93£1,408,737.96
81£1,461,565.63£1,514,393.30
82£1,571,183.05£1,627,972.80
83£1,689,021.78£1,750,070.76
84£1,815,698.41£1,881,326.07
85£1,951,875.79£2,022,425.52
86£2,098,266.48£2,174,107.44
87£2,255,636.47£2,337,165.49
88£2,424,809.20£2,512,452.91
89£2,606,669.89£2,700,886.87
90£2,802,170.13£2,903,453.39
91£3,012,332.89£3,121,212.39
92£3,238,257.86£3,355,303.32
93£3,481,127.20£3,606,951.07
94£3,742,211.74£3,877,472.40
95£4,022,877.62£4,168,282.83
96£4,324,593.44£4,480,904.05
97£4,648,937.95£4,816,971.85
98£4,997,608.29£5,178,244.74
99£5,372,428.92£5,566,613.09
100£5,775,361.08£5,984,109.07
101£6,208,513.17£6,432,917.26
102£6,674,151.65£6,915,386.05
103£7,174,713.03£7,434,040.00
104£7,712,816.50£7,991,593.00
105£8,291,277.74£8,590,962.48
106£8,913,123.57£9,235,284.66
107£9,581,607.84£9,927,931.01
108£10,300,228.43£10,672,525.84
109£11,072,745.56£11,472,965.28
110£11,903,201.48£12,333,437.67
111£12,795,941.59£13,258,445.50
112£13,755,637.21£14,252,828.91
113£14,787,310.00£15,321,791.08
114£15,896,358.25£16,470,925.41
115£17,088,585.12£17,706,244.82
116£18,370,229.00£19,034,213.18
117£19,747,996.17£20,461,779.17
118£21,229,095.89£21,996,412.61
119£22,821,278.08£23,646,143.55
120£24,532,873.93£25,419,604.32
121£26,372,839.48£27,326,074.64
Sheet2
Cell Formulas
RangeFormula
A3A3=(A2*1.05)-((A2*0.05*0.25))
A5:B121,B3:B4,A4B3=(B2*1.1)-((B2*0.1*0.25))
 

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Those numbers in column A are definetly wrong.
Column B calculates correctly, but column A should amount to
399.534,74 €

Mappe1
BC
1
25.000,00 €5.000,00 €
35.187,50 €5.375,00 €
45.382,03 €5.778,13 €
55.583,86 €6.211,48 €
65.793,25 €6.677,35 €
76.010,50 €7.178,15 €
86.235,89 €7.716,51 €
96.469,74 €8.295,25 €
106.712,35 €8.917,39 €
116.964,07 €9.586,19 €
127.225,22 €10.305,16 €
137.496,17 €11.078,04 €
147.777,27 €11.908,90 €
158.068,92 €12.802,07 €
168.371,50 €13.762,22 €
178.685,44 €14.794,39 €
189.011,14 €15.903,97 €
199.349,06 €17.096,76 €
209.699,65 €18.379,02 €
2110.063,38 €19.757,45 €
2210.440,76 €21.239,26 €
2310.832,29 €22.832,20 €
2411.238,50 €24.544,61 €
2511.659,94 €26.385,46 €
2612.097,19 €28.364,37 €
2712.550,84 €30.491,70 €
2813.021,49 €32.778,58 €
2913.509,80 €35.236,97 €
3014.016,42 €37.879,74 €
3114.542,03 €40.720,72 €
3215.087,36 €43.774,78 €
3315.653,13 €47.057,88 €
3416.240,13 €50.587,23 €
3516.849,13 €54.381,27 €
3617.480,97 €58.459,86 €
3718.136,51 €62.844,35 €
3818.816,63 €67.557,68 €
3919.522,25 €72.624,50 €
4020.254,34 €78.071,34 €
4121.013,87 €83.926,69 €
4221.801,89 €90.221,19 €
4322.619,46 €96.987,78 €
4423.467,69 €104.261,87 €
4524.347,73 €112.081,51 €
4625.260,77 €120.487,62 €
4726.208,05 €129.524,19 €
4827.190,85 €139.238,51 €
4928.210,51 €149.681,40 €
5029.268,41 €160.907,50 €
5130.365,97 €172.975,56 €
5231.504,69 €185.948,73 €
5332.686,12 €199.894,88 €
5433.911,85 €214.887,00 €
5535.183,54 €231.003,53 €
5636.502,93 €248.328,79 €
5737.871,79 €266.953,45 €
5839.291,98 €286.974,96 €
5940.765,43 €308.498,08 €
6042.294,13 €331.635,44 €
6143.880,16 €356.508,09 €
6245.525,67 €383.246,20 €
6347.232,88 €411.989,67 €
6449.004,11 €442.888,89 €
6550.841,77 €476.105,56 €
6652.748,33 €511.813,48 €
6754.726,40 €550.199,49 €
6856.778,64 €591.464,45 €
6958.907,84 €635.824,28 €
7061.116,88 €683.511,10 €
7163.408,76 €734.774,44 €
7265.786,59 €789.882,52 €
7368.253,59 €849.123,71 €
7470.813,10 €912.807,98 €
7573.468,59 €981.268,58 €
7676.223,66 €1.054.863,73 €
7779.082,05 €1.133.978,51 €
7882.047,62 €1.219.026,90 €
7985.124,41 €1.310.453,91 €
8088.316,58 €1.408.737,96 €
8191.628,45 €1.514.393,30 €
8295.064,51 €1.627.972,80 €
8398.629,43 €1.750.070,76 €
84102.328,04 €1.881.326,07 €
85106.165,34 €2.022.425,52 €
86110.146,54 €2.174.107,44 €
87114.277,03 €2.337.165,49 €
88118.562,42 €2.512.452,91 €
89123.008,51 €2.700.886,87 €
90127.621,33 €2.903.453,39 €
91132.407,13 €3.121.212,39 €
92137.372,40 €3.355.303,32 €
93142.523,87 €3.606.951,07 €
94147.868,51 €3.877.472,40 €
95153.413,58 €4.168.282,83 €
96159.166,59 €4.480.904,05 €
97165.135,34 €4.816.971,85 €
98171.327,91 €5.178.244,74 €
99177.752,71 €5.566.613,09 €
100184.418,43 €5.984.109,07 €
101191.334,13 €6.432.917,26 €
102198.509,16 €6.915.386,05 €
103205.953,25 €7.434.040,00 €
104213.676,50 €7.991.593,00 €
105221.689,36 €8.590.962,48 €
106230.002,72 €9.235.284,66 €
107238.627,82 €9.927.931,01 €
108247.576,36 €10.672.525,84 €
109256.860,47 €11.472.965,28 €
110266.492,74 €12.333.437,67 €
111276.486,22 €13.258.445,50 €
112286.854,45 €14.252.828,91 €
113297.611,50 €15.321.791,08 €
114308.771,93 €16.470.925,41 €
115320.350,87 €17.706.244,82 €
116332.364,03 €19.034.213,18 €
117344.827,68 €20.461.779,17 €
118357.758,72 €21.996.412,61 €
119371.174,67 €23.646.143,55 €
120385.093,72 €25.419.604,32 €
121399.534,74 €27.326.074,64 €
Tabelle1
Cell Formulas
RangeFormula
B3:B121B3=B2*1.05-(B2*0.05)*0.25
C3:C121C3=C2*1.1-(C2*0.1)*0.25


So the difference is not 1 M but roughly 27 M
 
Last edited:
Upvote 0
Found it... in column A from cell A4 on downwards you are using the wrong formula with 10% gain instead of 5%.
 
Upvote 0
Solution
Found it... in column A from cell A4 on downwards you are using the wrong formula with 10% gain instead of 5%.
Oh No. That's put the retirement back by years 😂
However, many thanks for finding the error.
 
Upvote 0

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